Lighting fixture



Nov. 25, 1924- I J. K. RIDDLE LIGHTING FixTuRE Filcd Doc. 17, 1925 &

IQQWM/(IFM Patented Nov. 25, 1924.

UNITED STATES PATENT OFFICE.

JOHN K. RIDDLE, OF TOLEDO, OHIO, ASSIGNOR TO THE EDWARD N. RIDDLECOMPANY, OF TOLEDO, OHIO, A CORPORATION OF OHIO.

LIGHTING FIXTURE.

Application filed December 17, 1923.

To all whom it may concern:

Be it known that I, JOHN K. RIDDLE, a citizen of the United States,residin at T0- ledo, in the county of Lucas and gtate of Ohio, haveinvented a certain new and useful Improvement in Lighting Fixtures, ofwhich the following is the specification.

My invention relates principally to that class of lighting fixtureswhich are provided with arms which carry an electric light at theirextremity.

In devices of this kind, it is usually customary to separate theelectric light socket from the arm and this socket has to be providedwith an ornamental socket cover or,

an ornamental husk-in some instances both.

My invention has for its object to provide aconstruction in which thetermination of the arm of the fixture itself may be utilized to providean ornamental covering for the socket and at the same time to provide aconstruction which will permit the shell of the socket to be rigidlysecured to the fixture so that it is entirely concealed from View, thuseffectively dispensing with the necessity of providing either a socketcover or a husk, and to accomplish the same in such a way that noskilled labor will be required in erecting the fixture, as is the casewhere the usual construction is followed.

My means of accomplishing the foregoing objects are readily seen in theaccompanying drawing which is hereunto annexed and is a part of thisspecification.

Fig. 1 is a side elevation of a fragmentary portion of an arm for achandelier, the ex tremity being shown in section for the purpose ofdisclosing the construction of my improvement.

Fig. 2 is a top of plan view of the arm.

Fig. 3 is an enlarged fragmentary de tailed view showing the means ofattaching the shell to the fixture part.

The same reference numerals refer to similar parts throughout the entiredescription.

As shown in the drawing, the lighting fixture is provided with an arm 1which is usually cast and at its extremity is formed, as shown in thedrawing, into a cylindrical member 2. Although this member is shown anddescribed as cylindrical, it will be obvious to persons skilled in theart that it does Serial No. 681,214.

not have to be cylindrical in its exterior or cylindrical in itsvertical proportions, as it may be flared or it may be polygonal on itsexterior and still be capable of being employed in identifying myinvention.

Within this cylindrical member 2 is mounted the shell 3 of a standardelectric lamp socket, the exterior wall of which being of a size to abutagainst the interior wall of the cast cylindrial member. When this shellis mounted in this position, an expansible swage is placed inside of theshell, the swage being provided with a plurality of outwardly projectingpointed arms so that when it is expanded, the points of these armsimpinge upon the brass socket shell and swage it into the metal, formingthe cylindrical member as at l, with the result that it becomes securelyand firmly attached to the cylindrical member in such a manner that itpossesses great rigidity. The remaining parts of the socket may then beinserted in the shell, and the cap 5, through which the electricconductors pass, is placed at its upper end which is ordinarily crimped,as at 6, to hold the cap on it.

The cylindrical shell 2 has a shoulder 7 formed on the inside thereof.The usual shoulder 8 found on socket shells fits against this shoulderand helps the lugs 9, pressed out of the shell 3 into shell 2, insecuring these parts together.

Having described my invention, what 1 claim as new and desire to secureby Letters Patent of the United States is:

1. As an article of manufacture a fixture arm having an open endedshell, a shoulder within the shell, a light socket within the shell,said socket having a shoulder between its ends resting on the firstmentioned shoulder, and lugs on the socket shell pressed into the openended shell for securing the parts together.

, 2. A lighting fixture arm having an open ended cast integral shell, asocket shell within said shell and integral lugs on the socket shellpressed outwardly into the metal of the cast shell, and a cap forclosing both shells.

Dated November 23, 1923.

JOHN K. RIDDLE.

